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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Middle .Net Developer - **Company:** Trinetix - **Location:** Madrid, Spain - **Contract:** Permanent contract - **Skills:** Flutter, Clean Code Principles, .NET Framework, Agile Methodology, Artificial Intelligence, Amazon Web Services, Software Bug Management, C Sharp (Programming Language), Software Quality, Information Technology Consulting, Amazon DynamoDB, PostgreSQL, NoSQL, Standard Sql, Systems Architecture, Xamarin, Backend, Git, Front End Software Development, Restful APIs, Code Restructuring, Docker, Microservices - **Published:** October 10, 2026 - **Apply:** https://www.jobleads.com/es/job/middle-net-developer--spain--e1d75f9b3d1f054569707d014fafbce7a ## About the Role * 3+ years with .NET 6+, C# * Strong knowledge and skills in backend development, including microservices, RESTful * Ability to write clean, scalable, and efficient code * Knowledge of Relational DBs - PostgreSQL * Solid understanding of SQL * Hands-on experience with Docker * Git, understanding of CI\CD processes Nice-to-have * Experience with AWS is a plus * Experience with NoSQL DBs (e.g. DynamoDB) is a plus * Experience in working within an agile software development team ## Description Get AI-powered advice on this job and more exclusive features. We are looking for a talented .Net Developer to join our team. As a part of the biggest Ukrainian Xamarin/Flutter tight-knit team, you'll be working with professionals to build the future of their technology. You will constantly be faced with rewarding challenges and opportunities. Requirements * 3+ years with .NET 6+, C# * Strong knowledge and skills in backend development, including microservices, RESTful * Ability to write clean, scalable, and efficient code * Knowledge of Relational DBs - PostgreSQL * Solid understanding of SQL * Hands-on experience with Docker * Git, understanding of CI\CD processes Nice-to-have * Experience with AWS is a plus * Experience with NoSQL DBs (e.g. DynamoDB) is a plus * Experience in working within an agile software development team Core Responsibilities * Develop new features * Modernize existing features * Analyze Requirements and clarify with BSA * Participate in groomings, estimation and planning sessions * Collaborate with other team members (incl. Front-end team, QA team, TDM, BSA, Architect, etc.) * Support of the existing functionality, refactoring, bug fixing Expected Qualifications * Build and deliver complex features with confidence You take ownership of major parts of a project, building advanced features that meet both technical and business needs. * Make smart technical decisions and contribute to design discussions You can design and implement solutions independently, and you help shape system architecture to support scalability and long-term goals. * Support and mentor junior developers You share your experience with less-experienced teammates, offering guidance on code quality, design choices, and development best practices. What we offer * Continuous learning and career growth opportunities * Professional training and English/Spanish language classes * Comprehensive medical insurance * Mental health support * Specialized benefits program with compensation for fitness activities, hobbies, pet care, and more * Flexible working hours * Inclusive and supportive culture About Us Established in 2011, Trinetix is a dynamic tech service provider supporting enterprise clients around the world. Headquartered in Nashville, Tennessee, we have a global team of over 1,000 professionals and delivery centers across Europe, the United States, and Argentina. We partner with leading global brands, delivering innovative digital solutions across Fintech, Professional Services, Logistics, Healthcare, and Agriculture. Our operations are driven by a strong business vision, a people-first culture, and a commitment to responsible growth. We actively give back to the community through various CSR activities and adhere to international principles for sustainable development and business ethics. To learn more about how we collect, process, and store your personal data, please review our Privacy Notice: https://www.trinetix.com/corporate-policies/privacy-notice Seniority level * Seniority levelMid-Senior level Employment type * Employment typeFull-time Job function * Job functionOther * IndustriesIT Services and IT Consulting Referrals increase your chances of interviewing at Trinetix by 2x Get notified about new Dotnet Developer jobs in Spain. Madrid, Community of Madrid, Spain 3 weeks ago Madrid, Community of Madrid, Spain 1 month ago Greater Bilbao Metropolitan Area 1 month ago Madrid, Community of Madrid, Spain 2 months ago Greater Madrid Metropolitan Area 2 months ago Madrid, Community of Madrid, Spain 3 months ago We're unlocking community knowledge in a new way. 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